ZHCSNJ4B September   2007  – March 2021 PCA9543A

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 I2C Interface Timing Requirements
    7. 6.7 Switching Characteristics
    8. 6.8 Interrupt and Reset Timing Requirements
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1 RESET Input
      2. 8.4.2 Power-On Reset
    5. 8.5 Programming
      1. 8.5.1 I2C Interface
    6. 8.6 Control Register
      1. 8.6.1 Device Address
      2. 8.6.2 Control Register Description
      3. 8.6.3 Control Register Definition
      4. 8.6.4 Interrupt Handling
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power-On Reset Requirements
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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5 Pin Configuration and Functions

GUID-DC0C30B8-B5C0-491B-8C2F-7ED79B3335AC-low.gif
Table 5-1 Pin Functions
PIN DESCRIPTION
NAME D, PW
A0 1 Address input 0. Connect directly to VCC or ground.
A1 2 Address input 1. Connect directly to VCC or ground.
RESET 3 Active-low reset input. Connect to VCC or VDPUM(1) through a pull-up resistor, if not used.
INT0 4 Active-low interrupt input 0. Connect to VDPU0(1) through a pull-up resistor.
SD0 5 Serial data 0. Connect to VDPU0(1) through a pull-up resistor.
SC0 6 Serial clock 0. Connect to aVDPU0(1) through a pull-up resistor.
GND 7 Ground
INT1 8 Active-low interrupt input 1. Connect to VDPU1(1) through a pull-up resistor.
SD1 9 Serial data 1. Connect to VDPU1(1) through a pull-up resistor.
SC1 10 Serial clock 1. Connect to VDPU1(1) through a pull-up resistor.
INT 11 Active-low interrupt output. Connect to VDPUM(1) through a pull-up resistor.
SCL 12 Serial clock line. Connect to VDPUM(1) through a pull-up resistor.
SDA 13 Serial data line. Connect to VDPUM(1) through a pull-up resistor.
VCC 14 Supply power
(1) VDPUX is the pull-up reference voltage for the associated data line. VDPUM is the master I2C reference voltage while VDPU0 and VDPU1 are the slave channel reference voltages.